Hi,
In my procedure, I use the cholesky(a) function in the scipy.linalg.decomp
model. If the max number of row and column in matrix a is less equal 15,
cholesky(a) is OK. But when the max number is larger than 15, there will
have a error message:
“File "C:\Python24\Lib\site-packages\scipy\linalg\decomp.py", line 413,
in cholesky
if info>0: raise LinAlgError, "matrix not positive definite"
scipy.linalg.basic.LinAlgError: matrix not positive definite”.
My matrix is a real symmetric matrix and positive definite, so I don’t
know why the error emerges. Have there some limits on the number of row and
column in a matrix? Please give me your help.
Thanks!
Best wishes,
yan
_________________________________________________________________
免费下载 MSN Explorer: http://explorer.msn.com/lccn
_______________________________________________
Tutor maillist - [email protected]
http://mail.python.org/mailman/listinfo/tutor
